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Avalanche Forecast

Archived

Apr 2nd, 2026–Apr 3rd, 2026

Alpine
Natural avalanches unlikely, human triggered possible.
Treeline
Natural avalanches unlikely, human triggered possible.
Below Treeline
Below Threshold.
Alpine
Natural avalanches unlikely, human triggered possible.
Treeline
Natural avalanches unlikely, human triggered possible.
Below Treeline
Below Threshold.
Alpine
Natural avalanches unlikely, human triggered possible.
Treeline
Natural avalanches unlikely, human triggered possible.
Below Treeline
Below Threshold.

Regions

Yukon, Tutshi, Wheaton, White Pass East, White Pass West.

Triggering an avalanche is most likely in shallow, rocky and wind-affected areas where the snowpack transitions from thick to thin.

Confidence

Moderate

  • We are uncertain about how quickly persistent slabs are gaining strength.

Avalanche Summary

Over the past few days, there has been evidence of natural activity, including;

  • large cornice falls,

  • wind slabs size 1-2 on a variety of aspects,

  • loose wet size 1-1.5 on south through west aspects.

On Thursday, a solar-triggered wind slab was observed on a south-facing alpine slope that stepped down to a persistent weak layer, resulting in a size 2 avalanche.

Snowpack Summary

Surface hoar is developing with the recent cold, clear weather. Previous strong winds have created hard, pressed surfaces, wind slab, and sustrugi in exposed terrain. That being said, we’ve received reports of good riding on faceted northeast-facing slopes and sheltered terrain at lower elevations. A sun crust exists on or near the surface on sun-exposed slopes.

The lower snowpack is faceted and generally weak, particularly in shallow areas.

Weather Summary

Thursday Night

Partly cloudy. 10 km/h southeast ridgetop wind. Treeline temperature -9 °C.

Friday

Mostly cloudy. 30 km/h southeast ridgetop wind. Treeline temperature -8 °C.

Saturday

Mostly cloudy. 1 to 2 cm of snow. 30 km/h south ridgetop wind. Treeline temperature -5 °C.

Sunday

Mix of sun and clouds. 2 cm of snow. 20 km/h south ridgetop wind. Treeline temperature -5 °C.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Be aware of the potential for large avalanches due to buried weak layers.
  • Avoid shallow, rocky areas where the snowpack transitions from thick to thin.
  • Carefully evaluate steep lines for wind slabs.
  • Pay attention to cornices and give them a wide berth when traveling on or below ridges.

Problems

Persistent Slabs

Persistent Slab avalanches are the release of a cohesive layer of snow (a slab) in the middle to upper snowpack, when the bond to an underlying persistent weak layer breaks. Persistent layers include: surface hoar, depth hoar, near-surface facets, or faceted snow. Persistent weak layers can continue to produce avalanches for days, weeks or even months, making them especially dangerous and tricky. As additional snow and wind events build a thicker slab on top of the persistent weak layer, this avalanche problem may develop into a Deep Persistent Slab.

Wind Slabs

Wind Slab avalanches are the release of a cohesive layer of snow (a slab) formed by the wind. Wind typically transports snow from the upwind sides of terrain features and deposits snow on the downwind side. Wind slabs are often smooth and rounded and sometimes sound hollow, and can range from soft to hard. Wind slabs that form over a persistent weak layer (surface hoar, depth hoar, or near-surface facets) may be termed Persistent Slabs or may develop into Persistent Slabs.